Eduaed salm



I UNITED STATES PATENT OFFICE.

EDUABD SALM, OF BERLIN, GERMANY, ASSIGNORTO AKTIENGESELLSCHA FT FI TR CHEMISCI-IE PRODUKTE VORMALS H. SCHEIDEMANDEL, OF BERLIN, GERMANY,

A CORPORATION OF GERMANY.

METHOD FOR THE PRODUCTION OF SOLID GELATINOUS SUBSTANCES.

No Drawing.

To all whom it may concern:

Be it known that I, EDUARD SALM, a substances in a divided condition, and is an improvement of the method described in the pending application Serial No. 56816, filed October 19, 1915.

WVhile in that method the gelatin, glue or similar gelatinous material when in liquid state is brought into contact with a liquid such as benzene unable to dissolve the gelati- Tn'ous material, according to my present invention non-volatile oil is used as a liquid unable to dissolve such gelatinous material,

and able to solidify the material by cooling. The use of non-volatile oil enables a more convenient working and results in a more even and better product. Furthermore it is possible to easily arrange mechanical devices for removing the gelatinized globules from the oil as they are formed. After that, the globules taken out of the oil may be washed with benzene or the like and brought into a Warm room for drying; the

benzene or the other liquid, by which the material is washed may berecovered. All kinds of non-volatile oils might be used, especially those oils which have a specific 85 gravity of 0, 81, 2. For instance my invention is carried on in the following way:

I take a nozzle, or a vessel, the bottomof which has holes conforming in diameter to the desired volume of the globules, and

through this device I conduct at a temperature of 40 C. a solution of glue of about 30% into machine oil, or other non-volatile oil, having a specific gravity of 0, 8-1, 2 and a viscosity of 6 by Englers viscosimeter, at C. The glue entering the oil is subdivided into globules each of which rapidly solidifies within the liquid. It is easy to regulate the process so as to attain globules from the largest diameter down to 50 the finest powder.

Specification of Letters Patent.

Patented Aug. 15, 1916.

Application filed February 15, 1916. Serial No. 78,530.

removes the globules out of the liquid. In thls manner a small quantity of oil is sufficlent to treat great masses of glue.-

The globules of glue are cleaned from the oil by a washing process, for instance, by using benzene in a warm room, and the washlng medium may be recovered. The glue can be dried within a few hours, while the drying process now used for sheet glue requires several weeks.

I claim:

1. A method for the production ofsolid gelatinous substances in a divided condition, consisting in bringing such gelatinous material, when in liquid state, into contactwith a non-volatile oil.

' 2. A method for the production of solid gelatinous substances in a divided condition, consisting in bringing such gelatinous material, when in liquid state, into contact with a non-volatile oil, having a specific gravity of 0, 81, 2.

3. A method for the production of solid gelatinous substances in a divided form, consisting in bringing the gelatinous material, when in liquid state, into contact with a non-volatile oil and removing the globules of glue by a mechanical device as they are formed.

A. A method for the production of solid gelatinous substances in a divided condition, consisting in bringing such gelatinous material, when in liquid state, into contact with a non-volatile oil, and washing same by benzene or the like.

5. A method for the production of solid gelatinous substances in a divided form, consisting in bringing the gelatinous material, when in a liquid state, into contact with a non-volatile oil and removingAthe globules of glue by a mechanical device as they are formed, whereupon they are washed by benzene or the like recovering the washing medium and drying the globules in a warm room.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two Witnesses, this 21st day of January 1916.

EDUARD SALM.

Witnesses HENRY HASPER, ARTHUR SCHROEDER. 

